Mold Remediation — San Francisco, CA
Plenty of shops will quote you a mold remediation job over the phone without seeing it. That's how you end up overpaying. We don't work that way. Family-run, second-generation if you count my dad. We've watched fifteen national "plumbing chains" come and go in San Francisco and we're still here.
One we ran last year
Property manager call, San Francisco-area duplex. Both units had black mold growing on drywall behind a wallpapered bathroom. We pulled the system apart and found slow leak from a shower valve had been wetting the drywall for 18+ months. S520 containment, removed all affected drywall and tile substrate, treated framing with antimicrobial, post-remediation verification testing passed on the same trip — both tenants happy. $856.
What this service includes
Mold work follows IICRC S520 protocol: contain the area first to prevent spore spread, then remediate. Skipping containment is the #1 mistake unlicensed mold contractors make.
We set up plastic barrier walls around the affected area, run negative air pressure with HEPA-filtered air scrubbers (typically 4-6 air changes per hour), and the crew works in PPE inside the contained area.
Visible mold growth on porous materials (drywall, carpet, padding, fabric) is removed and bagged. Hard surfaces are HEPA-vacuumed and treated with EPA-registered antimicrobials.
After remediation, we run post-remediation verification (PRV) testing — usually third-party — to confirm the affected area returns to baseline.
Notes on San Francisco housing stock
We dispatch from a shop near the city limits, so San Francisco runs are quick. Suburbs and outlying towns run longer.
Price expectations
Small-area mold remediation (one bathroom or closet) runs $2,250 – $5,625. Medium-area remediation (single room) runs $5,625 – $12,250. Whole-home or HVAC-system contamination runs $18,750 – $50,000. Post-remediation verification (PRV) test runs $440 – $940.